com.itextpdf.layout.element

Class Table

java.lang.Object

com.itextpdf.layout.ElementPropertyContainer<T>

com.itextpdf.layout.element.AbstractElement<T>

com.itextpdf.layout.element.BlockElement<Table>

com.itextpdf.layout.element.Table

All Implemented Interfaces:

IAccessibleElement, IBlockElement, IElement, ILargeElement, IPropertyContainer

public class Table
extends BlockElement<Table>
implements ILargeElement

A Table is a layout element that represents data in a two-dimensional grid. It is filled with cells, ordered in rows and columns.

It is an implementation of ILargeElement, which means it can be flushed to the canvas, in order to reclaim memory that is locked up.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Table.RowRange A simple object which holds the row numbers of a section of a table.

Field Summary

Fields

Modifier and Type	Field and Description
protected PdfName	role
protected AccessibilityProperties	tagProperties

Fields inherited from class com.itextpdf.layout.element.AbstractElement

childElements, nextRenderer, styles

Fields inherited from class com.itextpdf.layout.ElementPropertyContainer

properties

Constructor Summary

Constructors

Constructor and Description
Table(float[] pointColumnWidths) Constructs a Table with the preferable column widths.
Table(float[] columnWidths, boolean largeTable) Constructs a Table with the preferable column widths.
Table(int numColumns) Deprecated. in 7.1 each column will have undefined width. Use another constructor to get predictable result.
Table(int numColumns, boolean largeTable) Deprecated. in 7.1 each column will have undefined width. Use another constructor to get predictable result.
Table(UnitValue[] columnWidths) Constructs a Table with the preferable column widths.
Table(UnitValue[] columnWidths, boolean largeTable) Constructs a Table with the preferable column widths.

Method Summary

Modifier and Type	Method and Description
<T extends IElement> Table	addCell(BlockElement<T> blockElement) Adds a new cell with received blockElement as a content.
Table	addCell(Cell cell) Adds a new cell to the table.
Table	addCell(Image image) Adds a new cell with received image as a content.
Table	addCell(String content) Adds a new cell with received string as a content.
<T extends IElement> Table	addFooterCell(BlockElement<T> blockElement) Adds a new cell with received blockElement as a content to the footer of the table.
Table	addFooterCell(Cell footerCell) Adds a new cell to the footer of the table.
Table	addFooterCell(Image image) Adds a new cell with received image as a content to the footer of the table.
Table	addFooterCell(String content) Adds a new cell with received string as a content to the footer of the table.
<T extends IElement> Table	addHeaderCell(BlockElement<T> blockElement) Adds a new cell with received blockElement as a content to the header of the table.
Table	addHeaderCell(Cell headerCell) Adds a new cell to the header of the table.
Table	addHeaderCell(Image image) Adds a new cell with received image to the header of the table.
Table	addHeaderCell(String content) Adds a new cell with received string as a content to the header of the table.
protected void	calculateWidths() Deprecated. This method does nothing after implementation table column width algorithms.
void	complete() Indicates that all the desired content has been added to this large element and no more content will be added.
IRenderer	createRendererSubTree() Creates a renderer subtree with root in the current table element.
void	flush() Writes the newly added content to the document.
void	flushContent() Flushes the content which has just been added to the document.
AccessibilityProperties	getAccessibilityProperties()
Cell	getCell(int row, int column) Returns a cell as specified by its location.
UnitValue	getColumnWidth(int column) Returns the column width for the specified column.
Table	getFooter() Gets the footer of the table.
Table	getHeader() Gets the header of the table.
List<Border>	getLastRowBottomBorder() Gets the markup properties of the bottom border of the (current) last row.
int	getNumberOfColumns() Returns the number of columns.
int	getNumberOfRows() Returns the number of rows.
IRenderer	getRenderer() Gets a table renderer for this element.
PdfName	getRole()
protected List<Table.RowRange>	getRowGroups()
boolean	isComplete() Checks whether an element has already been marked as complete.
boolean	isSkipFirstHeader() Tells you if the first header needs to be skipped (for instance if the header says "continued from the previous page").
boolean	isSkipLastFooter() Tells you if the last footer needs to be skipped (for instance if the footer says "continued on the next page")
protected IRenderer	makeNewRenderer()
Table	setAutoLayout() Set auto layout.
void	setDocument(Document document) Sets the document this element is bound to.
Table	setExtendBottomRow(boolean isExtended)
Table	setExtendBottomRowOnSplit(boolean isExtended)
Table	setFixedLayout() Set fixed layout.
void	setRole(PdfName role)
Table	setSkipFirstHeader(boolean skipFirstHeader) Skips the printing of the first header.
Table	setSkipLastFooter(boolean skipLastFooter) Skips the printing of the last footer.
Table	startNewRow() Starts new row.
Table	useAllAvailableWidth() Set Property.WIDTH = 100%.

Methods inherited from class com.itextpdf.layout.element.BlockElement

getMarginBottom, getMarginLeft, getMarginRight, getMarginTop, getPaddingBottom, getPaddingLeft, getPaddingRight, getPaddingTop, isKeepTogether, isKeepWithNext, setHeight, setKeepTogether, setKeepWithNext, setMargin, setMarginBottom, setMarginLeft, setMarginRight, setMargins, setMarginTop, setMaxHeight, setMinHeight, setPadding, setPaddingBottom, setPaddingLeft, setPaddingRight, setPaddings, setPaddingTop, setRotationAngle, setRotationAngle, setSpacingRatio, setVerticalAlignment

Methods inherited from class com.itextpdf.layout.element.AbstractElement

addStyle, getChildren, getProperty, hasProperty, isEmpty, propagateArtifactRoleToChildElements, setAction, setNextRenderer, setPageNumber

Methods inherited from class com.itextpdf.layout.ElementPropertyContainer

deleteOwnProperty, getDefaultProperty, getHeight, getOwnProperty, getSplitCharacters, getStrokeColor, getStrokeWidth, getTextRenderingMode, getWidth, hasOwnProperty, setBackgroundColor, setBackgroundColor, setBackgroundColor, setBackgroundColor, setBaseDirection, setBold, setBorder, setBorderBottom, setBorderLeft, setBorderRight, setBorderTop, setCharacterSpacing, setDestination, setFixedPosition, setFixedPosition, setFixedPosition, setFixedPosition, setFont, setFont, setFontColor, setFontColor, setFontKerning, setFontScript, setFontSize, setHorizontalAlignment, setHyphenation, setItalic, setLineThrough, setOpacity, setProperty, setRelativePosition, setSplitCharacters, setStrokeColor, setStrokeWidth, setTextAlignment, setTextRenderingMode, setUnderline, setUnderline, setUnderline, setUnderline, setWidth, setWidth, setWidthPercent, setWordSpacing

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.itextpdf.layout.element.IElement

setNextRenderer

Methods inherited from interface com.itextpdf.layout.IPropertyContainer

deleteOwnProperty, getDefaultProperty, getOwnProperty, getProperty, hasOwnProperty, hasProperty, setProperty

Field Detail

role

protected PdfName role

tagProperties

protected AccessibilityProperties tagProperties

Constructor Detail

Table

public Table(float[] columnWidths,
             boolean largeTable)

Constructs a Table with the preferable column widths.
Since 7.0.2 table layout algorithms were introduced. Auto layout is default, except large tables. For large table 100% width and fixed layout set implicitly.
Note, the eventual columns width depends on selected layout, table width, cell's width, cell's min-widths, and cell's max-widths. Table layout algorithm has the same behaviour as expected for CSS table-layout property, where columnWidths is <colgroup>'s widths. For more information see setAutoLayout() and setFixedLayout().

Parameters:

columnWidths - preferable column widths in points. Values must be greater than or equal to zero, otherwise it will be interpreted as undefined.

largeTable - whether parts of the table will be written before all data is added. Note, large table does not support auto layout. Table width must be specified.

See Also:

setAutoLayout(), setFixedLayout()

Table

public Table(UnitValue[] columnWidths,
             boolean largeTable)

Constructs a Table with the preferable column widths.
Since 7.0.2 table layout algorithms were introduced. Auto layout is default, except large tables. For large table 100% width and fixed layout set implicitly.
Note, the eventual columns width depends on selected layout, table width, cell's width, cell's min-widths, and cell's max-widths. Table layout algorithm has the same behaviour as expected for CSS table-layout property, where columnWidths is <colgroup>'s widths. For more information see setAutoLayout() and setFixedLayout().

Parameters:

columnWidths - preferable column widths, points and/or percents. Values must be greater than or equal to zero, otherwise it will be interpreted as undefined.

largeTable - whether parts of the table will be written before all data is added.

See Also:

setAutoLayout(), setFixedLayout()

Table

public Table(UnitValue[] columnWidths)

Constructs a Table with the preferable column widths.
Since 7.0.2 table layout algorithms were introduced. Auto layout is default.
Note, the eventual columns width depends on selected layout, table width, cell's width, cell's min-widths, and cell's max-widths. Table layout algorithm has the same behaviour as expected for CSS table-layout property, where columnWidths is <colgroup>'s widths. For more information see setAutoLayout() and setFixedLayout().

Parameters:

columnWidths - preferable column widths, points and/or percents. Values must be greater than or equal to zero, otherwise it will be interpreted as undefined.

See Also:

setAutoLayout(), setFixedLayout()

Table

public Table(float[] pointColumnWidths)

Constructs a Table with the preferable column widths.
Since 7.0.2 table layout algorithms were introduced. Auto layout is default.
Note, the eventual columns width depends on selected layout, table width, cell's width, cell's min-widths, and cell's max-widths. Table layout algorithm has the same behaviour as expected for CSS table-layout property, where columnWidths is <colgroup>'s widths. For more information see setAutoLayout() and setFixedLayout().

Parameters:

pointColumnWidths - preferable column widths in points. Values must be greater than or equal to zero, otherwise it will be interpreted as undefined.

See Also:

setAutoLayout(), setFixedLayout()

Table

@Deprecated
public Table(int numColumns,
                         boolean largeTable)

Deprecated. in 7.1 each column will have undefined width. Use another constructor to get predictable result.

Constructs a Table with specified number of columns. Each column will get equal percent width, the final column widths depend on selected table layout. 100% table width set implicitly for backward compatibility.
Since 7.0.2 table layout algorithms were introduced. Auto layout is default, except large tables. For large table fixed layout set implicitly.
Note, the eventual columns width depends on selected layout, table width, cell's width, cell's min-widths, and cell's max-widths. Table layout algorithm has the same behaviour as expected for CSS table-layout property, where columnWidths is <colgroup>'s widths. For more information see setAutoLayout() and setFixedLayout().

Parameters:

numColumns - the number of columns, each column will have equal percent width.

largeTable - whether parts of the table will be written before all data is added. Note, large table does not support auto layout. Table width must be specified.

See Also:

setAutoLayout(), setFixedLayout()

Table

@Deprecated
public Table(int numColumns)

Deprecated. in 7.1 each column will have undefined width. Use another constructor to get predictable result.

Constructs a Table with specified number of columns. Each column will get equal percent width, the final column widths depend on selected table layout. 100% table width set implicitly for backward compatibility.
Since 7.0.2 table layout was introduced. Auto layout is default, except large tables. For large table fixed layout set implicitly.
Note, the eventual columns width depends on selected layout, table width, cell's width, cell's min-widths, and cell's max-widths. Table layout algorithm has the same behaviour as expected for CSS table-layout property, where columnWidths is <colgroup>'s widths. For more information see setAutoLayout() and setFixedLayout().

Parameters:

numColumns - the number of columns, each column will have equal percent width.

See Also:

setAutoLayout(), setFixedLayout()

Method Detail

setFixedLayout

public Table setFixedLayout()

Set fixed layout. Analog of table-layout:fixed CSS property. Note, the table must have width property, otherwise auto layout will be used.

Algorithm description
1. Scan columns for width property and set it. All the rest columns get undefined value. Column width includes borders and paddings. Columns have set in constructor, analog of <colgroup> element in HTML.
2. Scan the very first row of table for width property and set it to undefined columns. Cell width has lower priority in comparing with column. Cell width doesn't include borders and paddings.
2.1 If cell has colspan and all columns are undefined, each column will get equal width: width/colspan.
2.2 If some columns already have width, equal remain width will be added remainWidth/colspan to each column.
3. If sum of columns is less, than table width, there are two options:
3.1. If undefined columns still exist, they will get the rest remaining width.
3.2. Otherwise all columns will be expanded proportionally based on its width.
4. If sum of columns is greater, than table width, nothing to do.

Returns:

this element.

setAutoLayout

public Table setAutoLayout()

Set auto layout. Analog of table-layout:fixed CSS property.
Note, large table does not support auto layout.

Algorithm principles.
1. Column width cannot be less, than min-width of any cell in the column (calculated by layout).
2. Specified table width has higher priority, than sum of column and cell widths.
3. Percent value of cell and column width has higher priority, than point value.
4. Cell width has higher priority, than column width.
5. If column has no width, it will try to reach max-value (calculated by layout).

Returns:

this element.

useAllAvailableWidth

public Table useAllAvailableWidth()

Set Property.WIDTH = 100%.

getColumnWidth

public UnitValue getColumnWidth(int column)

Returns the column width for the specified column.

Parameters:

column - index of the column

Returns:

the width of the column

getNumberOfColumns

public int getNumberOfColumns()

Returns the number of columns.

Returns:

the number of columns.

getNumberOfRows

public int getNumberOfRows()

Returns the number of rows.

Returns:

the number of rows.

addHeaderCell

public Table addHeaderCell(Cell headerCell)

Adds a new cell to the header of the table. The header will be displayed in the top of every area of this table. See also setSkipFirstHeader(boolean).

Parameters:

headerCell - a header cell to be added

addHeaderCell

public <T extends IElement> Table addHeaderCell(BlockElement<T> blockElement)

Adds a new cell with received blockElement as a content to the header of the table. The header will be displayed in the top of every area of this table. See also setSkipFirstHeader(boolean).

Parameters:

blockElement - an element to be added to a header cell

addHeaderCell

public Table addHeaderCell(Image image)

Adds a new cell with received image to the header of the table. The header will be displayed in the top of every area of this table. See also setSkipFirstHeader(boolean).

Parameters:

image - an element to be added to a header cell

addHeaderCell

public Table addHeaderCell(String content)

Adds a new cell with received string as a content to the header of the table. The header will be displayed in the top of every area of this table. See also setSkipFirstHeader(boolean).

Parameters:

content - a string to be added to a header cell

getHeader

public Table getHeader()

Gets the header of the table. The header is represented as a distinct table and might have its own properties.

Returns:

table header or null, if addHeaderCell(Cell) hasn't been called.

addFooterCell

public Table addFooterCell(Cell footerCell)

Adds a new cell to the footer of the table. The footer will be displayed in the bottom of every area of this table. See also setSkipLastFooter(boolean).

Parameters:

footerCell - a footer cell

addFooterCell

public <T extends IElement> Table addFooterCell(BlockElement<T> blockElement)

Adds a new cell with received blockElement as a content to the footer of the table. The footer will be displayed in the bottom of every area of this table. See also setSkipLastFooter(boolean).

Parameters:

blockElement - an element to be added to a footer cell

addFooterCell

public Table addFooterCell(Image image)

Adds a new cell with received image as a content to the footer of the table. The footer will be displayed in the bottom of every area of this table. See also setSkipLastFooter(boolean).

Parameters:

image - an image to be added to a footer cell

addFooterCell

public Table addFooterCell(String content)

Adds a new cell with received string as a content to the footer of the table. The footer will be displayed in the bottom of every area of this table. See also setSkipLastFooter(boolean).

Parameters:

content - a content string to be added to a footer cell

getFooter

public Table getFooter()

Gets the footer of the table. The footer is represented as a distinct table and might have its own properties.

Returns:

table footer or null, if addFooterCell(Cell) hasn't been called.

isSkipFirstHeader

public boolean isSkipFirstHeader()

Tells you if the first header needs to be skipped (for instance if the header says "continued from the previous page").

Returns:

Value of property skipFirstHeader.

setSkipFirstHeader

public Table setSkipFirstHeader(boolean skipFirstHeader)

Skips the printing of the first header. Used when printing tables in succession belonging to the same printed table aspect.

Parameters:

skipFirstHeader - New value of property skipFirstHeader.

Returns:

this element

isSkipLastFooter

public boolean isSkipLastFooter()

Tells you if the last footer needs to be skipped (for instance if the footer says "continued on the next page")

Returns:

Value of property skipLastFooter.

setSkipLastFooter

public Table setSkipLastFooter(boolean skipLastFooter)

Skips the printing of the last footer. Used when printing tables in succession belonging to the same printed table aspect.

Parameters:

skipLastFooter - New value of property skipLastFooter.

Returns:

this element

startNewRow

public Table startNewRow()

Starts new row. This mean that next cell will be added at the beginning of next line.

Returns:

this element

addCell

public Table addCell(Cell cell)

Adds a new cell to the table. The implementation decides for itself which row the cell will be placed on.

Parameters:

cell - Cell to add.

Returns:

this element

addCell

public <T extends IElement> Table addCell(BlockElement<T> blockElement)

Adds a new cell with received blockElement as a content.

Parameters:

blockElement - a blockElement to add to the cell and then to the table

Returns:

this element

addCell

public Table addCell(Image image)

Adds a new cell with received image as a content.

Parameters:

image - an image to add to the cell and then to the table

Returns:

this element

addCell

public Table addCell(String content)

Adds a new cell with received string as a content.

Parameters:

content - a string to add to the cell and then to the table

Returns:

this element

getCell

public Cell getCell(int row,
                    int column)

Returns a cell as specified by its location. If the cell is in a col-span or row-span and is not the top left cell, then null is returned.

Parameters:

row - the row of the cell. indexes are zero-based

column - the column of the cell. indexes are zero-based

Returns:

the cell at the specified position.

createRendererSubTree

public IRenderer createRendererSubTree()

Creates a renderer subtree with root in the current table element. Compared to getRenderer(), the renderer returned by this method should contain all the child renderers for children of the current element.

Specified by:

createRendererSubTree in interface IElement

Overrides:

createRendererSubTree in class AbstractElement<Table>

Returns:

a TableRenderer subtree for this element

makeNewRenderer

protected IRenderer makeNewRenderer()

Specified by:

makeNewRenderer in class AbstractElement<Table>

getRenderer

public IRenderer getRenderer()

Gets a table renderer for this element. Note that this method can be called more than once. By default each element should define its own renderer, but the renderer can be overridden by AbstractElement.setNextRenderer(IRenderer) method call.

Specified by:

getRenderer in interface IElement

Overrides:

getRenderer in class AbstractElement<Table>

Returns:

a table renderer for this element

isComplete

public boolean isComplete()

Description copied from interface: ILargeElement

Checks whether an element has already been marked as complete.

Specified by:

isComplete in interface ILargeElement

Returns:

the completion marker boolean

complete

public void complete()

Indicates that all the desired content has been added to this large element and no more content will be added. After this method is called, more precise rendering is activated. For instance, a table may have a setSkipLastFooter(boolean) method set to true, and in case of large table on flush() we do not know if any more content will be added, so we might not place the content in the bottom of the page where it would fit, but instead add a footer, and place that content in the start of the page. Technically such result would look all right, but it would be more concise if we placed the content in the bottom and did not start new page. For such cases to be renderered more accurately, one can call complete() when some content is still there and not flushed.

Specified by:

complete in interface ILargeElement

flush

public void flush()

Writes the newly added content to the document.

Specified by:

flush in interface ILargeElement

flushContent

public void flushContent()

Flushes the content which has just been added to the document. This is a method for internal usage and is called automatically by the document.

Specified by:

flushContent in interface ILargeElement

setDocument

public void setDocument(Document document)

Description copied from interface: ILargeElement

Sets the document this element is bound to. We cannot write a large element into several documents simultaneously because we would need more bulky interfaces for this feature. For now we went for simplicity.

Specified by:

setDocument in interface ILargeElement

Parameters:

document - the document

getLastRowBottomBorder

public List<Border> getLastRowBottomBorder()

Gets the markup properties of the bottom border of the (current) last row.

Returns:

an array of Border objects

getRole

public PdfName getRole()

Specified by:

getRole in interface IAccessibleElement

setRole

public void setRole(PdfName role)

Specified by:

setRole in interface IAccessibleElement

setExtendBottomRow

public Table setExtendBottomRow(boolean isExtended)

setExtendBottomRowOnSplit

public Table setExtendBottomRowOnSplit(boolean isExtended)

getAccessibilityProperties

public AccessibilityProperties getAccessibilityProperties()

Specified by:

getAccessibilityProperties in interface IAccessibleElement

calculateWidths

@Deprecated
protected void calculateWidths()

Deprecated. This method does nothing after implementation table column width algorithms.

getRowGroups

protected List<Table.RowRange> getRowGroups()